Detonating firework



Dec. 4, 192s. 1,693,818

H. REIHLEN DETONATI NG FIREWORK Filed Sept. 2l, 1927 INVENTOR with the -guinj arabic-gun powder solution, whereupon the tubular casing Slis flattened downl upon the wick enclosed therein, as shown in Figure of the drawings; While'it is preferred to'einploy the paper casing in? initialt'ubular' form as above stated," this is not absolutely essential, since a flat paper sheet may be used and `folded longitudinally upon itself around the wick, to produce theV flattened tubular Wrapper characteristic 'of the grasshopper firework device.;

After the` prepared wickis thus inserted in VVthe flattenedftubular casing 3, thelatter is 5 transversely foldedback and forth Tupon it,

self inf zigzagfashion to provideia seriesfof connected sections of desired number and desired individuallength (see Figuresjnl the wrapper o rgcasing (which may-,be done either byhand or by 1nach1ne) exerts a squeezingor compactlng pressure upon' the portions of gthe dry powder encrusted wick..

which are disposed at and adjacent to the line of fold, whereby the .dry adhering powder at the rwick-portions experiencing such pressure 'tion Sinterrnediatethe folds 3f the dry afdheri-ngpowderon the portions ofwick eX-y tending therethrough/ijs left'relatively free and uncompressed so as tov be capable of comparatively rapidcombustion within the con f lined interior spacesof the sections 3',

consequently, when ignited, the'rapidexpansionvof- 'the gases ofcombustion within-the conlined space of the'section interiors `will burst the walls thereof with a loudreport@ orV detonation. Thes'wick-sections or links 44` Awill burnwithfa relatively slow but neverthe less'A sure'comb-ustion, and' will[serve to carry anigniting *spark around the-folds i vfrom an exploded section tothe-next adjacent section, wherein combustion again becomes :rapid with desired detonating effect,"L Thus Y'the complete` devicewhen ignited at one Vend "will progresisvely Vburnlfrorn section to seci tion towardfthe other end, and in. the course o f combustion will 4produce a series offsucces--v` sive explosions, fupon the occurrenceof each of v'Which the device as a whole Vwill juanp. about, Jfrom vwhich action the naine grass- After-thelcasing is folded to producethe Yb ody comprisingthe series Vof connected' s ections 137', said bodyiswrapped transversely 'with' a retaining tie 5 ofi-cordel' the like,Y to

retainV the sections against separation from folded' relation both duringhandlingof the 5 sans@` and duringY thejdetonation thereof. Y

In order to provide a convenient point for *initial ignition of the device, one end of the wick l is allowed toiproject exteriorly from 'aneud sectionV 3'* ofthe device, and this free endof the wick isdipped in a strong solution ofA guinarabic andgun-powderto form there- -fuse 6. ,It will be obvious, however, that an `Vtion fof' the deviceto serve as an igniting fuse, if such arrangement is preferred. I

As many changes could Vlbe -macle inV the above described construction Aand many diff ferent embodiments of-this f -invention could thereof, "it is intended. thatjall fmatter 'contained inthe abovedescription vor shown 1n thevaccon'ipanyin'gdrawings Vshall be interpreted as illustrative and` not ina limiting sense.V Y

Having thusjd'escribed my invention, I claimtf- 1 i f less s aturatedjwith a solution. of gum arabic' and gun-powder disposed to extend through said casing from sectionV toV section, and por- Vvtions of said'body within each section having itssurfacesfencrustedwith dry gun powder. 1 3g A iireworkdeviceofthe kind described, comprising tubular casing` folded-trans- ;versely upon itself -to provide a plurality of V"connectedsections, affibrous body more or less saturated with a Lsolution of 4gum yarabic .and1 gun powder 'disposed to extendthrough said casing from .sectionfto sectiomportions Aof, ASaid body Vwithin 'each `section having itsV sur-faces encrusted: with i vdry gun powder, means to retainsaid 'casing in folded condition, andmeans to.ignite said fibrous body Vatlone'end thereof. l f 4 1' A firework device of the kind described, comprising a tubular casing, a fibrous body Vvtreated with gum arabic and gun powderex- Y ing folded transversely-upon itself `to :pro-

librous body: havingr its gum, arabicgunV powder: content compacted by the; pressu re Yof the frorna comparatively slow burning igniting independent fuse of any other desired form may'be'inserted in the free end ofan end sec-` l. 'A iireworkjdeviee of-thelkind described` be made without departing ,from the scope Ytending through said casing, said casingbevide a Vseries of-@connected j sections," and Asaid casing atand adjacent tothe lines offold parativelyslowburning body kportions :inter- `f tions lying within thejcasingsections. r

comprising a ,tubular casing, a brous Vbody efftlnV latter to-produceiat such points commediate the4 relativelyjrapid burning por- 5. Aireworkdevice ofthe kind described, V

treated withV gum arabic and 'gunpowderf eX?. ,I

f tions 'intermediate eachwrapper section.

tending through said casing, said casingb'e-v ing folded transversely upon itselfv to ,providerV a series-of connected sections, ,andwsaid fie brous body having its gum arabic-gunv powder content compacted vby the pressure of the casing at and adj acerittothe lines of foldfof the latter to produce lat such points comparatively slow burning body portions intermediate the relativelyrapid burning portions lying with; Y

in the casing sectionLmeans tov retain said casing 1n f folded. r condit1on,` and: said brou's" body having an exteriorly projecting end portion treated .toprovide'fan gniting fuse. f v 7" .6. The method of producing fireworkdef` vices of tlie'lind described, 'compfri'singjsaturating'moreoi lessa fibrous wickinasolution of gumrarabic andgun powder, roll-l ing the Wick while moistenediby saldi soluv tion'in dry gun powder to lenorustfthe, s ur- .crusted portions'v of saidnwick, and whereby the folding of said'wrapper'compresses/the faces of the wick therewitli,` inserting thelwiclr thus treated `in an enveloping wrapper, and y then folding said wrapper transversely 'uponzl itself to produceY a series of connected sections enclosing rapidly 'combustible gun powdeif'endry gun powder into the underlying gum arabic-gun powder solutionin those portions of the wick at and adjacent to the lfolds to there- VVvices ofthe* kind describeoh comprisingysatii i ratinginore or less-afibrous wick in a solution s l folding said ,wrapper transverselyfupon tl f' the folding'.ofsaidwrapp'ei" Acompresses'fsltlie j v v, ydry-gun powderinto theunderlying gum .ara-f n ibic-gu'ii powder solution in those portions ofi b pvroviding atan end sectionof th'efwrapperan exterioily projecting end of saidfwick body,2

Vproduce avrelativrely slow burningligni'tingfV l forth above 'I have `heren-nto. set my'handthi byproduc'ecomparatively slow burning por# 'f 7.y .'I'hefmethod of producing firework of Vgum arabic andguri'powder', rolliifigthe wick.' while 'moiistened said solution Viii; r ldrygun powder to -encif'ust the surfaces 'of g the wick therewith, inserting'rthewick thusf n treated in an enveloping *wrapper-,pandtheir.; A

self to produce a'fseri'es of l:connected sections V j enclosingrapidly combustible gun powder enfv 1 i crusted portions l,of yfsalid iwicln, and Vwhereby' the` wick-atandi adjacent lt'o-thegrfolds to;

' thereby produce comparativelyv slow-'biirningh. k

portions intermediate 5 each wrapper Ysection,Y

ancl.impregnating said exterior wick endwith afsoliition of gum arabic and 'gun-poWder toky Y In tesamen@ that i l@laminat inveniionsetj l f 15th day of Septenfifber1927.3;v s Y 

